Peter has really set me to thinking about a suppressed or "moderated" as he says, .223. I have one Ar-15 that does .75"@ 100m. Big medicine for squirrels and such, but what fun that would be. I think I'll check into it. What the heck, as a Life NRA member, I'm sure I'm on the "Ones to be gathered in" list anyway. I think the license is about $200 or so.